vs

Convex vs Supabase

Convex: Reactive TypeScript backend with a transactional document database, server functions and live queries. Supabase: Open-source Postgres backend platform: database, auth, storage, realtime and edge functions in one project.

key differences

  • Convex is primarily a document database; Supabase is relational.
  • Licensing: Convex is source-available (FSL-1.1-Apache-2.0 (backend); Apache-2.0 client); Supabase is open source (permissive) (Apache License 2.0).
  • Only Supabase has joins, geospatial, triggers, materialized views, encryption at rest.
  • Convex has a serverless option; Supabase does not.

choose convex for

  • +Realtime collaborative SaaS apps
  • +AI chat and agent apps with vector search
  • +Startups replacing a hand-built API plus cache
  • +Apps scaffolded by AI coding tools

best at · OLTP, Vector search, RAG

choose supabase for

  • +MVPs and startups needing a complete backend quickly
  • +AI-generated apps from Lovable, Bolt and similar builders
  • +Mobile and web apps with auth and file uploads
  • +Realtime collaborative features via Postgres changes

best at · OLTP, Vector search, RAG

overview
Primary model
Document
Relational
Also supports
Vector, Search Engine
Document, Vector, Spatial
Type
Backend platform
Backend platform
Status
Active
Active
Developer
Convex, Inc.
Supabase, Inc.
First release
2022
2020
Latest version
1.48.0 (npm client) (Oct 22, 2026)
v1.26.08 (self-hosted) (Aug 7, 2026)
License
Source-availableFSL-1.1-Apache-2.0 (backend); Apache-2.0 client
Open source (permissive)Apache License 2.0
Free tier
✓
✓
popularity
WhichDB Score
26.0
54.3
Rank
#114
#23
GitHub stars
12.8K
114.1K
Stack Overflow questions
–
2.1K
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Medium (≤ 10 TB)
Horizontal scaling
None
None
Multi-region
None
Read replicas
ACID
Full
Full
Consistency
Strong
Strong
Schema
Flexible
Strict
Architecture
Serverless, Client server
Primary replica, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
✓
—
Embedded
—
—
Edge
—
—
Clouds
–
AWS, Vercel
capabilities
Transactions
✓
✓
Joins
—
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
✓
✓
Geospatial
—
✓
JSON
✓
✓
Change data capture
✓
✓
Triggers
—
✓
Stored procedures
✓
✓
Materialized views
—
✓
TTL / expiry
—
—
Pub/Sub
✓
✓
Columnar storage
—
—
In-memory
—
—
Durable persistence
✓
✓
Compression
—
—
Encryption at rest
—
✓
Role-based access
—
✓
Time travel
—
—
Branching
—
✓
Online schema changes
—
—
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
TypeScript query functions
SQL, PL/pgSQL, GraphQL
Client languages
TypeScript, Python, Rust, Swift, Kotlin
JavaScript, Python, Dart, Swift, Kotlin, C#, Go, Rust
Best for
OLTP, Vector search, RAG, Search
OLTP, Vector search, RAG, Content

Convex vs Supabase: FAQ

What is the difference between Convex and Supabase?

Convex: Reactive TypeScript backend with a transactional document database, server functions and live queries. Supabase: Open-source Postgres backend platform: database, auth, storage, realtime and edge functions in one project. Convex is primarily a document database; Supabase is relational. Licensing: Convex is source-available (FSL-1.1-Apache-2.0 (backend); Apache-2.0 client); Supabase is open source (permissive) (Apache License 2.0). Only Supabase has joins, geospatial, triggers, materialized views, encryption at rest.

When should I choose Convex over Supabase?

Choose Convex for realtime collaborative SaaS apps; AI chat and agent apps with vector search; and startups replacing a hand-built API plus cache. Choose Supabase for MVPs and startups needing a complete backend quickly; AI-generated apps from Lovable, Bolt and similar builders; and mobile and web apps with auth and file uploads.

Is Convex or Supabase more popular?

Supabase ranks #23 on the WhichDB Score (54.3/100) and Convex ranks #114 (26.0/100). Popularity is not fit: check the requirements that matter for your project.

Are Convex and Supabase open source?

Not in the OSI sense. Convex is source-available: you can read the code, but the license restricts some uses, typically offering it as a competing managed service. License: FSL-1.1-Apache-2.0 (backend); Apache-2.0 client. Yes. Supabase is open source. License: Apache License 2.0.